Can people not assume:
A: A move was done in lieu of trading for a reliever, or any move for that matter, or that Ambres was even sought after by anyone, especially those who have relievers to give up?
B: That if you don't know how to spell the player's name you're up in arms about, that people will think you know who you're talking about?
Graffanino was the best upgrade the team could likely get at a spot that needed to be addressed. There's absolutely no way of knowing that any worthy reliever could have been had for the same package. None. I'd much rather a good utility player for that package than say the overrated and overpriced Hasegawa from SEA, who doesn't represent any upgrade, outside of name valueTM.
Furthermore, one thing that should be noted, Theo Epstein knows a whole lot more than any person posting on any of these forums. Seriously. I'm sure he's actually been on the phone with any team possible, and came to the conclusion this was the best move the team could make right now. You can take that to the bank.